Air Quality in Ansan-si, South Korea

Drizzle
29.0°C · 71.2% humidity
29.0°
Feels 34.4°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
29 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
52 5am
52
52
60 8am
38
36
28 11am
27
27
26 2pm
26
26
23 5pm
23
23
23 8pm
23
32
32 11pm
32
32
32 2am
32
32
Station readings 45h ago
AQI 52
PM2.5 12.6 µg/m³ · 45h ago
AD 728×90

Air Quality Index Trend

46h · 102 stn

Ansan-si's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions. Current PM2.5 concentration in Ansan-si is 1.1× the WHO 24-hour guideline of 15 µg/m³.

71.2%
Humidity
13.9 km/h
Wind ENE
1004.6 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.2 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Ansan-si?

Temperature & Precipitation

PM2.5 Trend

46h · 102 stations
PM2.516.2 µg/m³ ×1.1 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (29 stations within 25 km)
16.2
Median
15.54
Average
7.2
Low
25.9
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -5.3

What is the 7-day forecast for Ansan-si?

08-03
29.0° 26.7°
0.56 mm
08-04
32.2° 26.1°
5.06 mm
08-05
28.5° 23.6°
2.0 mm
08-06
34.5° 25.7°
0.5 mm
08-07
30.8° 26.4°
08-08
30.7° 23.4°
0.25 mm
08-09
31.8° 23.0°
2.25 mm
Both models agree Avg diff: 3.9°C

Where are air quality stations near Ansan-si?

81
Ansan (안산시)
0.8 km PM2.5: 26.4 µg/m³
78
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 24.9 µg/m³
76
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 24.0 µg/m³
93
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 32.1 µg/m³
68
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 20.2 µg/m³
46
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 11.0 µg/m³
85
Wongok, Ansan-si, Gyeonggi, South Korea (원곡동 경기)
2.0 km PM2.5: 28.3 µg/m³
57
Wongok, Ansan-si, Gyeonggi, South Korea (원곡동 경기)
2.0 km PM2.5: 15.0 µg/m³
104
Wongok, Ansan-si, Gyeonggi, South Korea (원곡동 경기)
2.0 km PM2.5: 36.7 µg/m³
57
Wongok, Ansan-si, Gyeonggi, South Korea (원곡동 경기)
2.0 km PM2.5: 15.0 µg/m³

What cities are near Ansan-si?

63 Anyang-si 54 Uiwang 54 Gunpo 60 Hwaseong-si 54 Siheungdong 54 Suwon 55 Gwangmyeong 59 Incheon 52 Bucheon-si 58 Osan
Get AQI alerts for Ansan-si

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:58 UTC.